The project included 1:60 scaled model test verification of a large new production semi-submersible platform to be installed in the Jack-St. Malo field (in the Gulf of Mexico) operated by Chevron, at a depth more than 2000 m and with hurricanes and strong loop currents challenging the design.
As for the FPSO tests above, among the primary objectives were the evaluation of the global motion and mooring line responses (wave frequency and low frequency). The extreme depth was modelled by a careful truncation of mooring lines and risers. Furthermore, the tests included a verification of extreme motions with particular focus on Steel Catenary Riser (SCR) design; on the deck clearance (air-gap and run-up) in extreme hurricanes; and on the estimation of wave-induced slamming loads.
